# Learn Special Methods by Building a Vector Space - Step 12

### Tell us what’s happening:

how the hell am i not following the instructions above ive done it ive done the inheritance bs no? l

``````class R2Vector:
def __init__(self, x, y):
self.x = x
self.y = y

def norm(self):
return (self.x**2 + self.y**2)**0.5

def __str__(self):
return f'{self.x, self.y}'

# User Editable Region

class R3Vector(R2Vector):
pass
R3Vector().norm().__str__()

# User Editable Region

v1 = R2Vector(2, 3)
print(v1.norm())
print(v1)
``````

User Agent is: `Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36`

### Challenge Information:

Learn Special Methods by Building a Vector Space - Step 12

No, you have not done this ‘bs’ quite correctly

1 Like

You need to follow the instructions exactly. Don’t add anything extra that’s not specifically mentioned in the instructions or hints.

1 Like

From the example:

``````class Oak(Tree):
pass
``````

There should not be any code added after the `pass` keyword.

Happy coding